Window



Oct. 13, 1953 A. G. LEMOS 2,654,913

WINDOW Filed March 26, 1949 2 Sheets-Sheet 1 a G-Zemos A. G. LEMOS Oct. 13, 1953 WINDOW 2 Sheets-Sheet 2 Filed Marsh 26, 1949 gnuenboz/ fln thong G- Le Patented Oct. 13, 1953 UNITED STATES PATEN T OF E PCE WINDOW Anthony- G. Lemos, Plainfleld; N. J.

Application March 1949, "Serial No.83;-549

5 Claim. 1

This invention relate to improvements in windows. In particular, the invention is "directedto an assembly of movable window sash of the kind used in the construction of dwellings or the like to both admit light and to adjustably provide for ventilation. Additionally, "my invention comprehen'ds component parts for a Window assembly by which supplementary sash may be removably installed therewith to create dead air space at glazed areas and a resulting decrease in therate of heat transmissionthroug'h the window.

My invention has for its principal object the provision of 'a window'assembly giving adequate lighting which maybe opened or closed in a manner which proVide'S-efiicient and w'ell regulated ventilation. Itis a' further :objeeto'finy invention to rovide an ass'em'blyof several "mov able window sash which, whe'nin closed position, are firmly sealed with respect to one another and with respect "to all mating surfacesin the window frame. :A further object of'my invention is to provide a windo'w assembly adapted to double glazing, or to which supplementary sash may bequickly and easily added-to form a. dual-pane window. Astill further object or my invention is to provide a Tmovabl'e window sash assembly, the component parts or which may be e'asilyfmani'pulated and readily 'cleaned, and one "which presents a pleasing appearance and useiul'combination forthe' transmission of light and air.

These and other important objects and advantages 'of'myinvention are attainedin part,

by the use of athree sasn'unit which differs substantially from the conventional two sash sliding window-assembly. 'Iwoupper sash elements are 'slidably disposed in a'wi'ndow frame and a'r'e counterbalanced with each other, and the third and lowermost sash is pivotably-swung from the window frame adjacent .the lower reaches thereof. Conveniently manipulated hardware is installed in the sash elements and window frame 'whereby'the lowermost or pivot ingisash 'may be latched against the lower of the'two sliding sash when thewindow is "closed, and at the :same "time the lowermost pivoting sash :is secured against pivoting with respect to the window frame. Clamping action thus obtained is distributed in a :novel fashion to effect a tight hermetic seal at mating surfaces between the sash elements and to also create tight joints between the sliding sash elements and thepulley stiles in the window frame, thus avoiding a necessity for auxiliary Weatherstripping at these joints. 7

within the *frame are glazed upper --an'd lower of'narts used in the -construction of iny window assembly which are within the =s'c'o'pe of the invention as particularly po ted out in the silbjoinedclaims.

Inith'e drawings,

Figure lisa front elevation-view ofawindow assembly whichiincorporates'the features oi -my invention, taken I-fro'm the l'nner iside of the window,

Figure 2 is a vertical crosswection view taken through the window assembly of Figure 1 on lln'es' 2 2,

Figure 3 is an enlarged "Vertical oross=seotion View of the 'window assembly of Figure ll, ipartly fragmentary and for'esliorteneu to fit withinithe confines of thepa'ge,

Figure 4 is a fragmentary Vertical crosssection view taken o'n line 4- 4 of Figure :1 to illustrateclam ing liardware,

Figure 4a is a :fragmentary enlarged view of the clamping hardware or Figure =14,

Figure 5 is a horizontal fragmentary cl oss section vie'w illiistfaiting a -sash tpivot,

Figure 6 is a Itra'gnientary vertical crosssection taken o'n lin'e ii-=3 or Figure .1 showing clamping hardware recessed in the vertical "windew-frame,

Figure 7 ts a fragmentary vertical cross- "section view 'showin'g supplementary apane iattachment, "taken :on line l-l of :Figure 1,

Figure 8 ts a fragmentary vertical crosssection view on line 8-8 of Figure 1 toillustrate thewindow-liiton the lower sliding pane, and

Fi' ures :9 and 10 are fragmentary crossseetional views of dual window sashof alternative structure "which nlay be employed in the window assembly of 'my invention.

Referring "to the drawings, in Figures 1 and 2, "the window assembly is "outlined by a window frame "H "constructed of-yertical "and horizontal component members with suitable trim and sill structure. I'prefer to employ wood in so "constructing "the frame "and window sash structural members to be later described, althou'g'h wood substitutes may be used as desired. Confined vertically sliding window sash I2, I3 respectively and a pivoting lowermost window sash I4. The lowermost sash I4 is pivoted for inward tilting to a pair of opposite window hangers 20, as at 2|, and may also be swung clear of the window frame on the hangers at pivots 22 secured to the window frame. The pivoting connections 2I see also Figure 5, are preferably such as to present a degree of frictional engagement whereby the window itself will remain substantially in any set position when it is opened. If desired, for large and heavy window sash, the pivoting point 2I may be located closer to the mid-point of the sides of the lowermost sash I4 so that, in addition to a nominal frictional engagement, the sash will be balanced.

ISliding sash I2 and I3 are counterbalanced with each other by the use of a pair of flexible supporting cables 25 affixed to the sash in suitable recesses located in their side structure near their top edges, cables 25 being trained upwardly from each sash and over rotatable pulleys 26 mounted in window frame II. Customary stops and separating strips in the window frame confine the sliding sash I2 and I3 for vertical movement only, and when lower sash I3 is lifted as, for example, to the dotted line position of Figure 2, the upper sash l2 lowers to a corresponding position with respect to the vertical dimensions of the window frame.

Referring to Figure 3, the lowermost sash I4 may be pivoted angularly inwardly or it may be swung clear of frame II down into position against the sill of frame II, as illustrated in the two broken line positions; or it may be closed completely as shown in full, whereupon the lower structural member abuts the window sill, and a recess 28 in its lower edge engages weather-stripping 29 on the lower horizontal frame member to provide a seal against the transmission of air or drafts. Swinging movement on pivots 22 is restrained in favor of pivoting by the use of tension springs 23 interposed between hangers 25 and frame II. The lower corners of the sash section are given a slight radius and are faced with a pair of curved abutment plates 30 which bear against the vertical parting strips or beads 3| during closure to avoid excessive wear which would otherwise occur as the relatively soft wood of the sash frame engages the relatively hardwood bead. On its upper edge, sash I4 is inclined downwardly outwardly and is notched, as at 32 in order to present adequate vertical bearing against a corresponding notch 32' in sash I3. Side strips 33 afiixed to sash I4 form a closure at the window frame and correspond as a continuation with the vertical front stops 34 which guide the inner side of sliding sash I3.

The upper horizontal structural member or check rail of sliding sash I3 has an outwardly extending ledge 35 coextensive between parting beads 3!, more clearly seen in Figure 7, from which depends a downwardly inclined hookshaped face 36 to engage acorresponding upwardly inclined face 35' on inward ledge 35' on the lower structural member or check rail of the co-acting sliding sash I2. Thus, when sash I3 is pulled downwardly, which action, in turn, tends to move sash I2 upwardly, an effective draft seal is effected by reason of the wedging action produced which seals the mating edges and forces sash I3 outwardly and draws sash I2 inwardly against parting strip 3|. Sufficient clearance is provided between the co-acting ledges 35 and 35 and between the ledges and sash structure so that no locking action or interference takes place at these surfaces, and for the purpose of filling the clearance space between ledge 35 and sash I3, I use a spring closure strip 31 co-extensive across the sash. Corresponding with the construction of the lowermost pivoting sash, the upper sliding sash is provided with a notch 28 for its full width across the top surface which engages with a Weatherstrip 29 fixed horizontally to frame II.

A pair of clamp handles 40, see Figures 1, 4, and 4a, are mounted in brackets 4I recessed'in the upper corners of pivoting sash I4, and handles 40 may be moved from a horizontal open window position shown in broken lines of Figure la to the vertical clamping position shown in the full lines in the several views. When turned vertically, clamp handles 40 serve to rotate the right hand and left hand extending plates 42, the hook shaped portions 43 of which will engage the rotatable draw-down pins 44 trunnioned in brackets 45 in the lower sliding sash I3. The extending portion 46 of plates 42, at the same time, will enter the apertures 4'! in the side plates 48, see Figure 6, recessed in frame I I to lock sash I4 against pivoting. It will be noted at this point that aperture 4? has inclined sides whereby plate i2 may be urged in the direction of sash closure as it reaches full engagement to tightly engage the upper structure of lowermost sash I4 against the lower mating edge of lower sash I3 and against parting bead 3 I.

Reconsidering the aforementioned clampingv and locking action as it affects the window assembly as a whole, the manipulating of clamps 4!) to clamping position will (a) draw sliding sash I3 down against pivoting sash I4 and simultaneously (12) press the top edge of sash I4 outwardly of the window against the lower edge of sash I3. Pull-down action (a) will in turn, tend to increase the mutual engagement of inclined surfaces 36, 35' on the check rails which will result in further tendency for sliding sash I3 to be urged into draft sealing contact outwardly of the window against strip M and for sash I2 to be urged inwardly against the strip. These combined actions will provide efficient weather sealing between the sash and frame and will also ensure tight sealing between the sash to preclude any necessity for auxiliary Weatherstripping at these joints. The only surface contacts not so urged to closed position will be the single mating of the lowermost sash and the frame, and that of uppermost sash I2 and the frame, and at both of these locations I provide auxiliary weatherstrips.

To form a dual pane window, identical auxiliary sash elements 5!] may be removably inserted in each main sash I2, I3 and I4 as shown installed in Figure 1. Each auxiliary sash 50 consists of an outlining metallic frame 5| carrying a pane of glass or the like 52 and arranged to be inserted within a suitable rabbet in the structural borders of the main sash, spaced from the glazed areas thereof. Outline frame 55 has an irregular cross-sectional shape, see Figures 5; 7, and 8, including an inner peripheral notch 53 to ac commodate the glass pane. 52; and an'adjoining outer stepped peripheral notch 54 serving to I prefer to removably secure auxiliary's'ash 50 j gamma to the main sash'by 'hooking the outlining 'frames 5| ever triangular points 'm or the like whichrare set in the L lower horizontal structural :members of the sash, see Figures 1 and '7, :in a m-anner whereby'the broad -=top.-'edgesof the points .1 engage the-step on notch 54, thus avoiding interference with '"weather strip 55, and by then' latching the upper edge against the step on notch 54 by=the useof pivoting 'levers 51 set in the sash framework and operative by means of the angular maninulatingedgeszez recessedinzthesashframe. To facilitate lifting the edges 62, I cut a small radius clearance -53 in the .main .sash :structure wherebythe auxiliary sash arereadily removable for. cleaning or storage.

, To raisersash I3 I provideapull member 651ecessed in .the sash frame, seeFigure .8, which may also serve as acatch fonan. additional docking clamp 66 swivelably mounted on sash 14. The additional locking provision :is;especially usefulonylong'sash where the distance between the sidelockingclamps 40 is great and where additionaLstability is desired. In this respectit -,will be;understood that for long window sections or forornamental purposes it may be desirable to subdivide one or more of the sash into :smaller sections by the use of appropriate substructure. Inasmuch as the window assembly of my invention is particularly adaptable to large window areas or picture windows, it may further be desirable to employ metal counterbalancing pulley hangers to more adequately carry the load which exists by the use of large areas of plate glass, rather than to merely support the pulleys 26 on simple screw-type axles as indicated in Figures 1 and 2.

Alternative windows of the fixed dual-pane type may be used with my window construction as shown in Figures 9 and 10 thus obviating the use of supplementary sash as hereinbefore described. Figure 9 illustrates a lighter type of dual pane 61 held separate and engaged by the sheet metal members 69, 10 encased in a puttylike material H supported in a sash frame 68. Likewise, heavier dual panes 61', as shown in Figure 10, may be mounted in sash frame 68 by the use of members 59, 10 embedded in material 'H' and held securely in place by the use of moulding strips 11''.

In use, the window assembly of my invention provides an eflicient use of the window area for lighting and ventilation. By using three sash elements, a wider window may be constructed for broad visibility without resorting to interrupting mullions necessitated by a plurality of adjacent sliding two-sash assemblies. When cleaning the glazed areas, the lowermost sash may be swung clear of the window frame for accessibility. The lower sliding sash may be easily reached at this point and, to clean the upper sliding sash, the lower sliding sash may be elevated to a suitable position thus lowering the sash to a position of ready access.

For ventilating through the window, various degrees of window opening may be adjustably had, and desirable deflection of air may be produced by tilting action of the lowermost sash. For a limited transmission of air, the pivoting sash may be used alone or the sliding sash may be opened slightly at the top and bottom, or a combination of the two may be made. The obvious advantages gained by tilting the lower sash are the avoidance of direct drafts and also the upward deflection of air currents tending to introduce smaller quantities of floating dust and dirt suspended in :the :air and wet zgiveta :change off-air.

To remove the sash cfrom rthe :frameitxls .pnly necessaryrto :disconnect :"lowermost :pivoting sash M :from its l hangers Land: remove it entirely from the window frame and Ito :then i disengageicable 25 from pulley "i6 permitting both sliding sash tocbe lowered .:to the position of Lathe lowermost sash, whereupon "the inner -of the ttwo sliding sash may :be taken from the frame and theacable disconnected. YIheparting bead 3|is constructed in :two sections, the lowers section being removable from 'frame H, sthus making it :possible into then :withdraw sash t2 inwardly from the-"blind stops "at the lower sash opening. lDuring rinstal lation the reverse procedure is employed.

The window of any 2 invention :finds a a particularly usefulupurpose in its use for schools and publi'c onoiflceibuildings:where adequate and improved aventilation" is a. problem: and: where lig'ht ing is of paramountimportance. At full open position: there wlll be substantially two-thirds of the window area-available for ventilation. The use of wide window areas without interrupting mullionsaffords generous vision and at the same time :rducesthe costs of windows compared with the conventional two-sash assembly. Added to these advantages are the provisions for tight sealing without extensive weather stripping and for dual pane installations of varying characteristlcs as well as the complete accessibility for manipulating and cleaning the sash elements.

I claim:

1. A window assembly of the class described comprising, in combination, a window frame, a pair of interconnected sliding sash superimposed in adjacent planes in the upper two thirds portion of said frame and adapted to be vertically moved to open and closed positions, a pivoting sash arranged in the lower one third portion of said frame and adapted to pivot inwardly of the frame and to close in contact with the window sill and an adjacent sliding sash, and sash clamps interconnecting said pivoting sash with said adjacent sliding sash and adapted to urge both of said interconnected sliding sash into closed position.

2. A window assembly of the class described comprising, in combination, a window frame, a. pair of interconnected sliding sash superimposed in adjacent planes in the upper two thirds portion of said frame and adapted to be vertically moved to open and closed positions, a pivoting sash arranged in the lower one third portion of said frame and adapted to pivot and swing inwardly of the frame and to close in contact with the window sill and an adjacent sliding sash, and sash clamps interconnecting said pivoting sash with said adjacent sliding sash and adapted to urge both of said interconnected sliding sash into closed position.

3. A window assembly of the class described comprising, in combination, a window frame, a pair of interconnected sliding sash arranged in adjacent planes in the upper two thirds portion of said frame and adapted to be vertically moved to open and closed positions, a pivoting sash arranged in the lower one third portion of said frame and adapted to pivot inwardly of the frame and to close in contact with the window sill and an adjacent sliding sash, and sash clamps interconnecting said pivoting sash with said adjacent sliding sash adapted to urge said pivoting sash into mutual contact with said adjacent sliding sash and to simultaneously urge both of said interconnected sliding sash into closed position.

4. A window assembly of the class described comprising, in combination, a window frame, a pair of interconnected sliding sash disposed in adjacent planes in the upper two thirds portion of said frame and adapted to be moved to open and closed positions, vertical stops in said frame to guide the sliding sash, a pivoting sash arranged in the lower one third portion of said frame and adapted to close in contact with the window sill and an adjacent sliding sash, and sash clamps interconnecting said pivoting sash with said adjacent sliding sash adapted to urge the sliding sash vertically into closed position and horizontally with respect to said vertical stops into sealing engagement therewith.

5. A window assembly of the class described comprising, in combination, a window frame, a pair of interconnected sliding sash disposed in adjacent planes in the upper two thirds portion of said frame and adapted to be moved vertically to open and closed positions, vertical stops in said window frame to guide the sliding sash, interengaging edges on the check rails of the sliding sash to urge said sash horizontally toward each other against said vertical stops when in closed position, a pivoting sash arranged in the lower one third portion of said frame adapted to close in contact with the window sill and an adjacent sliding sash, and sash clamps interconnecting said pivoting sash with said adjacent sliding sash and with said frame and adapted to urge said adjacent sliding sash vertically with respect to said window frame to closed position and horizontally with respect to said vertical stops.

ANTHONY G. LEMOS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 234,078 Sharp Nov. 2, 1880 348,526 Longshore Aug. 31, 1886 846,573 Kupelwieser Mar. 12, 1907 982,580 Elmer Jan. 24, 1911 1,198,244 Linck Sept. 12, 1916 1,345,915 Fair July 6, 1920 1,416,097 Lancaster May 16, 1922 1,580,939 Zimmer Apr. 13, 1926 2,007,849 Desmarais July 9, 1935 2,106,308 Soderberg Jan. 25, 1938 2,183,356 OToole Dec. 12, 1939 2,191,500 Rosling Feb. 27, 1940 

